Question

it is dificult to cut cloth by a pair of bunt scisor why

Answer 1

because if area of contact increases pressure decreases ...
blunt scissors have more area of contact so pressure is reduced ....

hope it helps..

Answer 2

It is difficult to cut a piece of cloth from a pair of blunt scissors because....

#Blunt scissors increase the surface area.
#more the surface area less is the pressure exerted on the cloth.
#less is the pressure exerted the more it will be difficult to cut the cloth.
Hope it helps